El (u.2164dbcadd1660799bdefd59f8a581de.brr.0.0.7.doc.brr.Brr.El)

Sourcetype document

See Brr.Document.t this is a forward declaration.

Sourcetype window

See Brr.Window.t this is a forward declaration.

Sourcetype tag_name = Jstr.t

The type for element tag names.

Sourcetype t

The type for elements. Technically this is a DOM Node object. But we focus on DOM manipulation via elements, not the various kind of nodes that may exist.

Sourcetype el = t

See t.

Sourceval v : ?d:document -> ?at:At.t list -> tag_name -> t list -> t

v ?d ?at name cs is an element name with attribute at (defaults to []) and children cs. If at specifies an attribute more than once, the last one takes over with the exception of At.class' and At.style whose occurences accumulate to define the final value. d is the document on which the element is defined it defaults Brr.G.document.

Sourceval txt : ?d:document -> Jstr.t -> t

txt s is the text s. d is the document on which the element is defined it defaults Brr.G.document. WARNING This is not strictly speaking an element most function of this module will error with this value.

Sourceval txt' : ?d:document -> string -> t

txt' s is txt (Jstr.v s).

Sourceval sp : ?d:document -> unit -> t

sp () is El.txt Jstr.sp

Sourceval nbsp : ?d:document -> unit -> t

nbsp () is El.txt' "\u{00A0}".

Sourceval is_txt : t -> bool

is_txt e is true iff e is a text node. Note that in this cases many of the function below fail.

Sourceval is_el : t -> bool

is_el e is true iff e is an element node.

Sourceval tag_name : t -> tag_name

name e is the tag name of element e lowercased. For is_txt nodes this returns "#text".

Sourceval has_tag_name : tag_name -> t -> bool

has_tag_name n e is Jstr.equal n (name e).

Sourceval txt_text : t -> Jstr.t

txt_text e is the text of e if e is a text node and the empty string otherwise.

Sourceval document : t -> document

document e is the document of e.

Sourceval as_target : t -> Ev.target

as_target d is the document as an event target.

Element lookups

Parent, children and siblings

Sourceval parent : t -> t option

parent e is the parent element of e (if any).

Sourceval children : ?only_els:bool -> t -> t list

children e are e's children. Warning, unless only_els is true (defaults to false) not all returned elements will satisfy is_el here.

Sourceval set_children : t -> t list -> unit

set_children e l sets the children of e to l.

Sourceval prepend_children : t -> t list -> unit

prepend e l prepends l to e's children.

Sourceval append_children : t -> t list -> unit

append_children e l appends l to e's children.

Sourceval previous_sibling : t -> t option

previous_sibling e is e's previous sibling element (if any).

Sourceval next_sibling : t -> t option

next_sibling e is e's next sibling element (if any).

Sourceval insert_siblings : [ `Before | `After | `Replace ] -> t -> t list -> unit

insert_siblings loc e l inserts l before, after or instead of element e according to loc.

Sourceval remove : t -> unit

remove e removes e from the document.

Attributes and properties

Sourceval at : At.name -> t -> Jstr.t option

at a e is the attribute a of e (if any).

Sourceval set_at : At.name -> Jstr.t option -> t -> unit

set_at a v e sets the attribute a of e to v. If v is None the attribute is removed. If a is empty, this has not effect.

Some attributes are reflected as JavaScript properties in elements see here for details. The following gives a quick way of accessing these properties for elements whose interface which, unlike Brr_canvas.Canvas and Brr_io.Media.El, are not necessarily bound by Brr for the time being (or will never be).

Sourcemodule Prop : sig ... end

Element properties.

Sourceval prop : 'a Prop.t -> t -> 'a

prop p e is the property p of e if defined and false, 0, 0. or Jstr.empty as applicable if undefined.

Sourceval set_prop : 'a Prop.t -> 'a -> t -> unit

set_prop p v o sets property p of e to v.

Classes

Sourceval class' : Jstr.t -> t -> bool

class' c e is the membership of e to class c.

Sourceval set_class : Jstr.t -> bool -> t -> unit

set_class c b e sets the membership of e to class c to b.

Style

Sourcemodule Style : sig ... end

Style property names.

Sourceval computed_style : ?w:window -> Style.prop -> t -> Jstr.t

computed_style ?w p e is the computed style property p of e in window w (defaults to G.window).

Sourceval inline_style : Style.prop -> t -> Jstr.t

inline_style p e is the inline style property p of e.

Sourceval set_inline_style : ?important:bool -> Style.prop -> Jstr.t -> t -> unit

set_inline_style ~important p v e sets the inline style property p of e to v with priority important (defaults to false).

Sourceval remove_inline_style : Style.prop -> t -> unit

remove_inline_style p e removes the inlie style property p of e.

Layout

The inner bound of an element includes its content and padding but not its border. We use the client* properties to get it. These only have integral CSS pixel precision.

Sourceval inner_x : t -> float

inner_x e is the horizontal coordinate in the viewport of e's inner bound. Add Window.scroll_x to get the position relative to the document.

Sourceval inner_y : t -> float

inner_y e is the vertical coordinate in the viewport of e's inner bound. Add Window.scroll_y to get the position relative to the document.

Sourceval inner_w : t -> float

inner_w e is e's inner bound width.

Sourceval inner_h : t -> float

inner_h e is e's inner bound height.

The bound of an element includes its content, padding and border. We use getBoundingClientRect to get it. These have CSS subpixel precision.

Sourceval bound_x : t -> float

bound_x e is the horizontal coordinate in the viewport of e's bound. Add Window.scroll_x to get the position relative to the document.

Sourceval bound_y : t -> float

bound_y e is the vertical coordinate in the viewport of e's bound. Add Window.scroll_y to get the position relative to the document.

Sourceval bound_w : t -> float

bound_w e is e's bound width.

Sourceval bound_h : t -> float

bound_h e is e's bound height.

Scrolling

Sourceval scroll_x : t -> float

scroll_x e is the number of pixels scrolled horizontally.

Sourceval scroll_y : t -> float

scroll_y e is the number of pixels scrolled vertically.

Sourceval scroll_w : t -> float

scroll_w e is the minimum width the element would require to display without a vertical scrollbar.

Sourceval scroll_h : t -> float

scroll_h e is the minimum height the element would require to display without a vertical scrollbar.

Sourceval scroll_into_view : ?align_v:[ `Start | `End ] -> t -> unit

scroll_into_view ~align e scrolls e into view. If align_v is `Start (default) the top of the element is align with to to the top of the scrollable area. If align_v is `End the bottom of the element is aligned with the bottom of the scrollable area.

Focus

Sourceval has_focus : t -> bool

has_focus e is true if e has focus in the document it belongs to.

Sourceval set_has_focus : bool -> t -> unit

set_has_focus b e sets the focus of e to b in the document it belongs do.

Pointer locking

Sourceval is_locking_pointer : t -> bool

is_locking_pointer e is true if e is the element which locked the pointer.

Sourceval request_pointer_lock : t -> unit Fut.or_error

request_pointer_lock e requests the pointer to be locked to e in the document it belongs to. This listens on the document for the next Ev.pointerlockchange and Ev.pointerlockerror to resolve the future appropriately.

Fullscreen

Sourcemodule Navigation_ui : sig ... end

Fullscreen navigation enum.

Sourcetype fullscreen_opts

The type for FullscreenOptions objects.

Sourceval fullscreen_opts : ?navigation_ui:Navigation_ui.t -> unit -> fullscreen_opts

fullscreen_opts () are options for fullscreen with given parameters.

Sourceval request_fullscreen : ?opts:fullscreen_opts -> t -> unit Fut.or_error

request_fullscreen e requests to make the element to be displayed in fullscreen mode.

Click simulation

Sourceval click : t -> unit

click e simulates a click on e.

Sourceval select_text : t -> unit

select_text e selects the textual contents of e. If the DOM element e has no select method this does nothing.

Element interfaces

Some interfaces are in other modules. See for example Brr_io.Media.El for the media element interface, Brr_canvas.Canvas for the canvas element interface and Brr_io.Form for the form element interface.

Sourcemodule Input : sig ... end

The HTML input element interface .